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一种动态窗口调整IAE滤波器的立体视觉测量滤波

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一种动态窗口调整IAE滤波器的立体视觉测量滤波
An IAE Filter with Dynamic Resizing Window for the Stereo Vision Measurement
投稿时间:2017-08-03
DOI:10.15918/j.tbit1001-0645.2019.02.010
中文关键词:立体视觉运动物体新息窗口宽度
English Keywords:stereo visionmoving objectinnovationwindow size
基金项目:
作者单位E-mail
王向周北京理工大学 自动化学院, 北京 100081
史小敏北京理工大学 自动化学院, 北京 100081
郑戍华北京理工大学 自动化学院, 北京 100081zhengshuhua@bit.edu.cn
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中文摘要:
针对运动物体的立体视觉测量滤波问题进行研究,引入IAE(innovation-based adaptive estimation)滤波器,并提出了一种IAE窗口动态调整的方法.先通过IAE对噪声方差估计的误差与窗口宽度的关系,限定了宽度的取值范围,再依据物体运动的深度变化率计算噪声标准差的变化率,以此动态调整滤波器窗口的宽度,从而提高IAE对噪声统计特性的估计精度.实验结果表明,所提出算法具有良好的滤波效果.
English Summary:
For measurement of moving objects in stereo vision, IAE filter was introduced and a method of the IAE filter window dynamic resizing (IAE-DW) was proposed. Firstly, the range of window size was constrained according to the relation between the window size and standard deviation estimation error of the IAE. Then the window size was adjusted dynamically based on the variance ratio of standard deviation calculated with the change rate of motion depth. Thus, the estimation accuracy of IAE to noise statistics can be improved. The experimental results demonstrate that the proposed algorithm can provide better filtering ability.
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